State Key Laboratory of Theoretical and Computational Chemistry, College of Chemistry, Jilin University, Changchun 130021, China.
Bioresour Technol. 2011 Oct;102(19):8939-44. doi: 10.1016/j.biortech.2011.07.032. Epub 2011 Jul 23.
Graphite oxide (GO) supported CaO catalysts were prepared and successfully applied to the transesterification of soybean oil with methanol. The supports and resultant catalysts were characterized using X-ray diffraction (XRD), transmission electron microscopy (TEM), N(2) adsorption, thermogravimetry (TG), X-ray photoelectron spectroscopy (XPS), temperature-programed desorption (TPD) and Fourier-transform infrared spectroscopy (FT-IR). The GO supported CaO catalysts exhibited excellent catalytic activity and were easily regenerated by simple heat-treatment. The oxygen-containing groups (i.e., hydroxyl, epoxide groups and carboxyl groups) present on the surface of GO likely act as anchoring centers for CaO. This work demonstrates that graphite oxide is an effective host material of catalytically active CaO nanoparticles for the transesterification of soybean oil with methanol to produce biodiesel.
氧化石墨（GO）负载的 CaO 催化剂被制备并成功应用于大豆油与甲醇的酯交换反应。使用 X 射线衍射（XRD）、透射电子显微镜（TEM）、N2 吸附、热重分析（TG）、X 射线光电子能谱（XPS）、程序升温脱附（TPD）和傅里叶变换红外光谱（FT-IR）对载体和所得催化剂进行了表征。GO 负载的 CaO 催化剂表现出优异的催化活性，并且可以通过简单的热处理进行再生。GO 表面上存在的含氧基团（例如羟基、环氧化物基团和羧基）可能充当 CaO 的锚固中心。这项工作表明，氧化石墨是催化活性 CaO 纳米粒子用于大豆油与甲醇的酯交换反应以生产生物柴油的有效宿主材料。
